Christina Applegate Updates Fans After MS Misdiagnosis

• Christina Applegate is undergoing medical testing after being misdiagnosed with multiple sclerosis.
• The actress shared her experience on the 'MeSsy' podcast in October.
• Despite not having multiple sclerosis, Applegate still experiences debilitating symptoms.
• She expressed her commitment to her community and her determination to overcome her challenges.
• Applegate aims to get her 's--t together' and face her new health challenges head-on.